You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

On all the time, or just at idle? If on all the time, either the sensor is dead, the wiring is faulty, or your oil pump died (or the pump nut fell off). I would not run the car until you determine what the issue is!

this exact problem was in my 96 honda before I bought it, the seller claimed it was minor/next to nothing. The light use to go on and off after idle, two days later the engine started ticking and got to a point it sounded like pop corns. I decided to take the engine apart and found the piston 1 bearing the done.
but in your case it could be the oil pressure regulator

what oil weight you using? how many clicks on the motor? could be a weak oil pump, too much clearence in your bearings or a weak oil pressure switch. the switch is the chapest part, better hope its that

personally i use 10w30. if you want to thicken the oil a bit use lucas. that stuff works good. you can try replacing the switch since they are cheap. not sure of the location but you can probably do a search on here or online to find its location

These are the best steps to take, from cheapest to most expensive.
1) go with heavier grade oil.
2) Test the sensor, borow one from someones car that wworks, would be your best bet.
3) Your oil pump might be worn out.
4) You have a bad bearing, meaning to much of a gap between the bearing and crankshaft.